In depth comparison and review of Olympus OM-D E-M10 and Pentax K-S1. Compare design, sensors, proximity features, memory capacities and other important specifications and features to easily choose the right camera for you. Our goal is to help you uncover differences between the products and find the digital camera that will best fit your needs.
| DESIGN AND DIMENSIONS | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| Product Type | Digital camera - 1080p - mirrorless system | Digital camera - 1080p - SLR with Live View mode, movie recording |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 8.23 cm | 9.3 cm |
| Width | 11.91 cm | 12 cm |
| Depth | 4.59 cm | 7 cm |
| Weight | 350 g | 485 g |
| Body Material | Magnesium alloy | - |
| Enclosure Colour | Black | Silver | White | Black |
| SENSOR | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| Sensor Resolution | 16.1 Megapixel | 20.12 Megapixel |
|---|---|---|
| Optical Sensor Type | Live MOS | CMOS |
| Total Pixels | 17,200,000 pixels | 20,420,000 pixels |
| Effective Sensor Resolution | 16,100,000 pixels | 20,120,000 pixels |
| Optical Sensor Size | Four Thirds (4/3") | APS-C (23.5 x 15.6 mm) |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Supersonic Wave Filter (SWF) | Special Protect (SP) coating |
| Image Stabiliser | Optical (5-axis image sensor shift mechanism) | - |
| Built-in Optical Image Stabiliser | Yes | - |
| PROCESSOR | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| Image Processor | TruePic VII | PRIME MII |
|---|
| LENS | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| Lens Mounting Type | Micro Four Thirds | Pentax KAF2 |
|---|
| FOCUSING | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| Auto Focus | TTL contrast detection | TTL phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 81 | 11 |
| AE/AF Control | Subject-tracking AF, Eye detection AF | Face-priority AF, Subject-tracking AF |
| Face Detection | Eye Detect AF | Yes |
| VIEWFINDER | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| Viewfinder Type | Built-in - electronic | Optical - fixed eye-level pentaprism |
|---|---|---|
| Viewfinder Colour Support | Colour | - |
| Viewfinder Resolution | 1,440,000 pixels | - |
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 1.15x | 0.95x |
| Optical Viewfinder Dioptric Correction Range | -4 to +2 | -2.5 to +1.5 |
| Viewfinder Information | Shutter speed, exposure compensation, AF-in-focus, aperture, white balance, metering system, Exposure Mode, image stabilizer, battery status, AF lock, AF point, electronic level | - |
| Field of View Crop Factor | 2 | - |
| Features | Viewfinder brightness control, auto eye sensor, colour temperature control | - |
| EXPOSURE & WHITE BALANCE | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| ISO (Max) | 25600 | 51200 |
|---|---|---|
| Native ISO | - | 100-51200 |
| Light Sensitivity | ISO auto, ISO 100-25600 | ISO 100-51200, ISO auto (100-51200) |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot |
| Exposure Metering Zones | 324 | 77 |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority | Programme, automatic, manual, aperture-priority, shutter-priority, shutter & aperture priority |
| Bracketing Modes | Art Filter bracketing, Dynamic Range Bracketing, ISO sensitivity bracketing | - |
| Shooting Programs | Landscape, portrait mode, macro, beach/snow, night portrait, landscape-portrait, Children, fireworks, 3D image, panorama assist, night scene, Underwater, sports mode, sunset, candle, high key, low key, documents, nature macro, e-portrait, fisheye converter, wide converter, macro converter, handheld starlight, digital IS | Landscape, portrait mode, macro, museum, surf & snow, PET, Blue Sky, food, night scene, sunset, candle, night snapshot, night scene with portrait, kids, Stage, night scene HDR, moving object, forest, backlight silhouette |
| Special Effects | Sepia, Monotone, Black & White Red filter, Black & White Yellow filter, Vivid, purple, blue, green, Frames, Black & White Orange filter, soft focus, natural, monochrome, Black & White Green filter, Muted, portrait, Water Colour, Diorama, Cross Process, Grainy Film, Light Tone, Pop Art, Pale & Light Colour, pin hole, Gentle Sepia, i-Enhance, Dramatic Tone, Image Overlay, Key Line, Star Light, White Edge | Natural, bright, Vibrant, monochrome, Muted, landscape, portrait, Cross Process, Bleach Bypass, Radiant, Reversal Film, Tone Expansion, Cold vintage, Colour Fade, Bold Monochrome, Unicolour Bold, Clear Tone, Warm Fade, Brilliant Colour, Infrared Filter |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Incandescent, fluorescent, cloudy, sunlight, Flash, shade, Underwater, 2000K - 14000K | Cloudy, tungsten light, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight colour), fluorescent light (daylight white) |
| Shutter Type | - | Mechanical electronically-controlled |
| Max Shutter Speed | 1/4000 sec | 1/6000 sec |
| Min Shutter Speed | 60 sec | 30 sec |
| Exposure Compensation | ±5 EV range, in 1, 1/2 or 1/3 EV steps | ±5 EV range, in 1/2 or 1/3 EV steps |
| Auto Exposure Bracketing | 7 steps in 1/3, 2/3 or 1 EV steps | - |
| White Balance Bracketing | Yes | Yes |
| X-sync Speed | 1/250sec | 1/180 sec |
| Exposure Range | EV -2-20 | EV 0-22 (ISO 100) |
| DISPLAY | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| Type | 3" LCD display | 3" LCD display |
|---|---|---|
| Touch Screen | Yes | - |
| Display Format | 1,037,000 pixels | 921,000 pixels |
| Display Form Factor | Folding | Built-in |
| Display Features | Contrast control | Colour control, display brightness control |
| FLASH | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| Camera Flash | Pop-up flash | Pop-up flash |
|---|---|---|
| Guide Number (m / ISO 100) | - | 10 |
| Flash Modes | Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction | Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction |
| Red-Eye Reduction | Yes | Yes |
| Features | AF illuminator, flash +/- compensation, wireless off-camera control | AF illuminator, flash +/- compensation |
| VIDEOGRAPHY / CAMCORDER | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| Digital Video Format | AVI, MJPEG, H.264, MOV | H.264 |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG, MPO | JPEG, DNG (RAW) + JPEG, DNG (RAW) |
| Max Video Resolution | 1920 x 1080 | 1920 x 1080 |
| Microphone Operation Mode | Stereo | Mono |
| Microphone Features | Wind noise reduction, sensitivity control | Sensitivity control |
| MEMORY | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| Memory Card Slot | SD card | SD card |
|---|---|---|
| Supported Memory Cards | SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card | SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDXC UHS-I Memory Card |
| Image Storage | RAW 4608 x 3456 - 17 MB JPEG 4608 x 3456 - 7.5 MB JPEG 4608 x 3456 - 3.5 MB JPEG 3200 x 2400 - 1.7 MB JPEG 1280 x 960 - 0.4 MB |
- |
| Video Capture | MOV - 1920 x 1080 - 30 fps - 24Mbps MOV - 1920 x 1080 - 30 fps - 16Mbps MOV - 1280 x 720 - 30 fps - 12Mbps MOV - 1280 x 720 - 30 fps - 8Mbps AVI - 1280 x 720 - 30 fps AVI - 640 x 480 - 30 fps - 16Mbps |
H.264 - 1920 x 1080 - 30 fps H.264 - 1920 x 1080 - 25 fps H.264 - 1920 x 1080 - 24 fps |
| BATTERY AND CHARGING | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| Battery Type | Olympus BLS-5 Lithium Ion | Pentax D-Li109 Lithium Ion |
|---|---|---|
| Details | Olympus BLS-5 Li-ion rechargeable battery (included) | Pentax D-Li109 Li-ion rechargeable battery (included) |
| Battery Life | Photo shooting - 320 shots | Photo shooting - 480 shots (50% flash usage) Playback - 4.5 hours |
| CONNECTIONS | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| Interface | Composite video/audio, HDMI, USB 2.0, IEEE 802.11b/g/n | HDMI |
|---|---|---|
| Connectivity Features | Remote control via mobile devices, remote live view | - |
| Print Standard | DPOF support, Exif Print support, PRINT Image Matching | DPOF support, Exif Print support |
| Flash Terminal | Hot shoe, PC terminal | Hot shoe |
| Connector Type | USB 2.0 Composite video/audio output HDMI output |
USB 2.0 HDMI output (19 pin micro HDMI Type D) |
| FEATURES | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| Self-Timer Delay | 2sec, 12sec | 2sec, 12sec |
|---|---|---|
| Continuous Shooting Speed | 8 frames per second, 3.5 frames per second | 3 frames per second, 5.4 frames per second |
| HDR Mode | - | Auto HDR mode |
| Additional Features | Built-in speaker, RGB primary colour filter, auto power save, sharpness control, camera orientation detection, histogram display, cropping an image, resizing an image, saturation control, in-camera red-eye fix, shadow point display, interval shooting mode, highlight point display, takes photos while film recording, built-in help guide, Shadow Adjustment Technology, in-camera RAW processing, HDR image enhancement technology, Intelligent AUTO (iAUTO), Dual Axis Electronic Level, GPS via mobile | RGB primary colour filter, depth-of-field preview button, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, saturation control, in-camera film editing, in-camera RAW processing, HDR image enhancement technology, hue control, Eye-Fi Card Ready, LED body illumination |
| OTHERS | Olympus OM-D E-M10 | Pentax K-S1 |
|---|
| Included Accessories | Battery charger, body cap, shoulder strap, USB cable | Battery charger, body cap, shoulder strap, eyecup, shoe cap |
|---|---|---|
| Software | Olympus Viewer 3 | Drivers & Utilities |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | 0 °C | -10 °C |
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